单项选择题 You execute the following command to audit the database activities：   SQL> AUDIT DROP ANY TABLE BY scott BY SESSION WHENEVER SUCCESSFUL；  What is the effect of this command？（）

单项选择题 Your database is not configured for session failover. Your tnsnames.ora file contains the following details：  test.us.oracle.com= （DESCRIPTION=  （ADDRESS_LIST= （LOAD_BALANCE=off）   （FAILOVER=ON）   （ADDRESS= （PROTOCOL=tcp）（HOST=test1-server）（PORT=1521））   （ADDRESS= （PROTOCOL=tcp）（HOST=test2-server）（PORT=1521）））   （CONNECT_DATA= （SERVICE_NAME=test.us.oracle.com）））   Which feature is enabled in this case？（）

单项选择题 YouwanttomovealltheobjectsoftheAPPSuserinthetestdatabasetotheDB_USERschemaoftheproductiondatabase.WhichoptionofIMPDPwouldyouusetoaccomplishthistask？（）